Attachment #767602 for bug #835788

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  } else if (mInfo.mDisplay.width >= 1024) {
    decoder_threads = 4;
  }
  settings.n_threads =
      static_cast<int>(std::min(decoder_threads, GetNumberOfProcessors()));
  // There is not much improvement with more than 2 tile threads at least with
  // the content being currently served. The ideal number of tile thread would
  // much the tile count of the content. Maybe dav1d can help to do that in the
  // future.
  settings.n_tile_threads = 2;

  int res = dav1d_open(&mContext, &settings);
  if (res < 0) {

Lines 347-352 class Dav1dDecoder final : AVIFDecoderInterface { Link Here

(-)a/image/decoders/nsAVIFDecoder.cpp (+1 lines)
347	Dav1dSettings settings;	347	Dav1dSettings settings;
348	dav1d_default_settings(&settings);	348	dav1d_default_settings(&settings);
349	settings.all_layers = 0;	349	settings.all_layers = 0;
		350	settings.max_frame_delay = 1;
350	// TODO: tune settings a la DAV1DDecoder for AV1 (Bug 1681816)	351	// TODO: tune settings a la DAV1DDecoder for AV1 (Bug 1681816)
351		352
352	return dav1d_open(&mContext, &settings);	353	return dav1d_open(&mContext, &settings);

Return to bug 835788

Lines 36-48 RefPtr<MediaDataDecoder::InitPromise> DAV1DDecoder::Init() { Link Here

(-)a/dom/media/platforms/agnostic/DAV1DDecoder.cpp (-6 / +1 lines)
36	} else if (mInfo.mDisplay.width >= 1024) {	36	} else if (mInfo.mDisplay.width >= 1024) {
37	decoder_threads = 4;	37	decoder_threads = 4;
38	}	38	}
39	settings.n_frame_threads =	39	settings.n_threads =
40	static_cast<int>(std::min(decoder_threads, GetNumberOfProcessors()));	40	static_cast<int>(std::min(decoder_threads, GetNumberOfProcessors()));
41	// There is not much improvement with more than 2 tile threads at least with
42	// the content being currently served. The ideal number of tile thread would
43	// much the tile count of the content. Maybe dav1d can help to do that in the
44	// future.
45	settings.n_tile_threads = 2;
46		41
47	int res = dav1d_open(&mContext, &settings);	42	int res = dav1d_open(&mContext, &settings);
48	if (res < 0) {	43	if (res < 0) {